This project is significant because it could help bring about a better understanding of, how UV wave lengths affect the people and the hole in the ozone layer. By determining the effects of UV on Artemia Salina we come closer to alleviating the effects of UV radiation on organisms. In the future this could lead to better UV protection technology. IV: UV exposure in seconds DV: Mortality Rate DV2: Growth Rate it mm/day H1=the UV radiation will kill more Shrimp the longer they are exposed to it. H2=the Artemia are more likely to form defects and some form of stunted growth. N1= The UV will have no effect and there will be no deformities or conditions of any kind on the Artemia Artemia are small crustaceans that live in saline, in-land shores including species like crayfish and brine shrimp. These invertebrates are small, and are generally hard to see in the water, have hard exoskeletons, and little legs that are really hard to see. Males give birth to young through laying cysts, while females produce offspring via live birth, being around since the Triassic period, Pre-historic fish have been sometimes eating Artemia and other times getting picked off by hovering birds. Artemia Salina or Sea Monkeys only go into near shore waters because most salt is far from shore and Artemia can only survive in certain salinity levels making it a little harder to culture in salt tanks. But when saline levels are just right they give peak results in experiments. They have almost no defenses but multiply quickly and are fast swimmers. Artemia also are extremely common in marine shops being used for human or fish food and also for a variety of science projects and has a hefty sale rate, even for how sometimes expensive th... ... middle of paper ... ...now that they’ve hatched, the shells can’t protect them from the UV.) 5. Re-Count the larvae Re-count the larvae exactly the same way as before. The larvae after radiation should have had some form of effect from the UV such as low mean amount, dead larvae, etc… (Note: If you want to re-count again, because you didn’t see an effect, it would be recommended because the UV radiation doesn’t always have instantaneous effects.) Materials List (In order of use) 1 bottle Artemia Salina eggs 4 culture dishes 1 UV lamp 4 500mL. Beakers 4 Air stones/ air pumps 4 Petri dishes 1 Pipette 1 magnifying glass 1 stirring rod Data Analysis Procedure 1. Make a graph representing the number of artemia per .5mL drop when counting artemia. 2. After counting, compare the averages of past countings to the current to find a possible mortality rate.
My predictions for 6.1 were almost exactly what I expected except for one area. I thought that I would have saw an increase for the Chthamalus barnacles on day 2 there were 4 and then on day 14 there were 13. The part that did not met my expectations was I did not see a small decrease in the number of both species towards the end. Only on the first the sample on day 12 t day 4 saw a small decease of 1 individual of each species. But for the second trial there was an increase for each of the species of barnacles fro day 12 to 14. The Chthamalus saw a large increase from 18 to 23. The Semibalanus Saw an increase of 3 to 5.
The ozone layer is the one that protects living things from the pure ultraviolet rays of the sun.
Despite having different views on the topic, each essay holds an alike form to one another. Didion tires to evoke emotion from the audience by putting statistical facts of deaths that
Seven to thirteen Artemia (from high nutrition sample) fed twice a day with Tetraselmis species, New Life Spectrum Thera,
After 4-5 days we again observe the tanks for growth and sediment (which could contain eggs) since the copepods grow
Lighting in tanks of goldfish can alter the pigment of the goldfish in various ways. The corr...
[7] Rothschild, Lynn J. “The Influence of UV Radiation on Protistan Evolution.” Journal of Eukaryotic Microbiology (1999), Issue 46 no. 5 pg. 548-555.
Scientists have performed many different tests and studies to learn more about high exposure to UV. Close observation of cells have shown that sunlight, natural or artificial, can cause mutations or DNA damage in cells. This can lead to further damage which will then be passed down through generations. Another study scientists perform is on animals. Scientist will expose your typical lab animals to UV rays, and this test typically results in skin cancer on the animal. These studies have been performed with UVA, UVB, and UVC, and they have all proven
Biology 108 laboratory manual. 2010. Lab 3, habitat preferences of artemia franciscana, pp. 45-62. University of Alberta, Edmonton, Alberta, Canada.
Photosynthesis is a widely studied topic among the world of science due to its importance for life and its many uses. Photosynthetic pigments reflect and absorb different wavelengths of visible light based off their polarity. In this experiment, we studied photosynthetic pigments, first, by determining polarity and then, by measuring the amount of light of a given wavelength that a pigment absorbs. We used two methods in this experiment, chromatography and spectrophotometry. For the first portion of our experiment we determined the distance each pigment migrated, their R_f values, and their polarity. Our predications based off polarity, lead to our hypothesis
Cnidarians are found in the Mediterranean and in the oceans. They can live in the ocean as well as coastal waters. But the primary habitat for Cnidarians are in the open ocean. Jellyfish can live in any oceans. There are deep water and shallow water jellyfish. Certain jellyfish, such as the Pelagia Noctiluca, can live anywhere that the ocean currents decide to carry it ("Phyla Cnidaria, Platyhelminthes, and Nematoda").
The experiment measured the survival rate, the growth rate, and the size of the brine shrimp at the time harvested in various environments. To obtain these measurements, three environments were created: sea water, brackish water, and freshwater. For this experiment the scientists used 5 liter plastic buckets. Every two days, half of the water from each bucket was discarded and new water, of each respective salinity, was added into each bucket...
Light is a very important factor in the rate of photosynthesis, in my project I am going to test that plants do need light in order to photosynthesise. It will be very interesting to see how light will influence the rate of photosynthesis in plants and what will happen if they do not get the required light in order to produce starch .
Osmosis is an animal’s way of adapting to different types of salinities (Office of Naval Research 3). All marine mammals have special traits that they adapted to help them survive in or around marine habitats (Marietta College 1). As prompted by the Marietta College of Ohio “Many organisms in saltwater are osmoconformers.” (1). An osmoconformer is an organism that has the same concentration of salt within its body as the surrounding water (1)....